Deja Vu

Deja Vu opens with a tragic ferry explosion. Denzel Washington's character works for ATF and is involved in the investigation. A group working for the government has developed some technology that allows them to bend time (kind of) and they can look back on things 4 days before. They follow some leads Denzel has and are able to use the technology to help solve the crime, with the hope that they might be able to prevent it.

So, it's a bit strange, and some parts are just gross, but the acting was good and it kept my attention (although I was looking away a time or two).